The 20 Biggest Tech Secrets Revealed

We reveal some of what vendors are keeping mum, such as: You never have to pay full price, extended warranties rarely pay for themselves, and the big sites do have customer service numbers.

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Psssst! Wanna know a secret? How about a whole bunch of them? Sadly, the Colonel's Secret Recipe and Dick Cheney's Secure Undisclosed Location remain shrouded in mystery, but I'm going to spill the beans about a bunch of things that technology companies would rather you didn't know. These insider tips will help you cut through hype when you shop, save money when you buy, and get the most out of products you already own.